Marine aquariums
Marine aquariums can be divided into several types, depending on the animals that inhabit coral reef, fish, mixed and thematic. Of course, the most memorable and prestigious, but at the…

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The creation in the garden ornamental fish pond
Since this problem of discharge is not simple, its planning should be approached carefully, thoroughly studied the issue. First, we determine which part of the site will be a pond.…

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How to make a pond for fish farming
There are many ways to create a pond to breed fish at home - as difficult, requiring a lot of physical and material costs, and simple and cheap. Before you…

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Directory of commercial fish

Centrolophidae – Stromateidae – Perciformes

Seriolella porosa, Seriolella punctata Silver warehou, Savorin

length: 67 cm; weight: 3 kg (average 500g); the production season: in bycatch, almost all year round.

Habitat

Savarin inhabits the Eastern Indian ocean (South Australia),South-West Pacific (New Zealand) and Southeast Pacific (Chile).

General information

Savarin (Warehou) – marine fish squad okuneobraznyh, common in tropical and subtropical seas.

Nutritional value

The content of mineral substances and trace elements: potassium (282 mg/100g), phosphorus (200 mg/100g), sodium (100 mg/100g), calcium (20 mg/100g). Continue reading

Do all fish spawn?

Most fish lay eggs, and it is fertilized outside of their body. Fish that spawn, are called oviparous. But some fish give birth to live fry. Such fish are called viviparous.

To live-bearing are guppies, sword fish. The eggs of these fish are fertilized inside the mother’s body and develop there until the fry. At a certain time they are born. This happens 21 days after fertilization.

The number of eggs, fertilized and deferred, differs greatly depending on the type of fish. Some fish lay eggs and abandon her, without showing her any more interest. This is a fish that produce huge amounts of eggs. Those fish that look after their young, they lay only a few eggs.

Caviar can be of two types. One kind of eggs floats on the water surface, the other sinking. The caviar, which floats, is called pelagic. It is usually tiny, bright and contains a lot of protein. Caviar, which is sinking, is called Donna. It is usually harder and more protein in it. Continue reading

How fish breathes?

Hundreds of thousands of years ago, long before the appearance on Earth of man, the oceans already swam fish. At that time they were the most highly developed creatures.

Since then, they began to develop a variety of ways so that now only some species only vaguely resemble the first primitive ocean fishes.

As a rule, fish has an elongated and tapering shape. People have copied it in the construction of ships and submarines, as it is the best adapted to movement in water.

Most fish use their tail as a motor. With the help of fins and they control their movements. Except for one species of fish, all the others breathe by means of gills. Fish swallows mouth water that passes through the gills and out through the hole. Water also contains oxygen, and it through the gills into the blood of fish, as the air through the lungs in the blood of man. Continue reading

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How do you sleep aquarium fish?
Watching fish in an aquarium, you'd think they never rest or sleep. In the understanding of man, they are in constant motion. However, like all animals, fish periods of active…

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5 most amazing marine life
1. The Humboldt Squid. The size of this predatory marine life can exceed 2 meters. Inhabits squid off the coast of Central America at a depth of 700 meters. The…

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